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6. ________ are used to ensure more accurate quantification in chromatographic techniques

  • Retardation factors
  • Resolutions
  • Internal standards
  • Distribution ratios

7. ______ is a measure of the spread of results, can be concentration dependant, can be matrix dependant

  • Precision
  • Bias

8. Calibration is used to determine an accurate amount of analyte in an unknown sample

  • True
  • False

9. To ensure equipment is working accurately and correctly, what is useful

  • Determine the column efficiency (n)
  • Determine the calibration
  • Determine the distribution ratio
  • Calculate a sensitivity factor (a)

10. ____________ arises from random error and effects

  • Precision
  • Bias

11. Calibration is not needed to validate a method

  • False
  • True

12. Major sources of error can be found in the _________, instrument and methods used

  • Irobot
  • Operator
  • Machines
  • Celotape

13. PAR means peak area ratio

  • True
  • False

14. Shewhard chart and Cusum chart are different types of

  • Method charts
  • Quality control charts
  • Mean charts
  • Maybellene

15. issues arise for precision when replicates are not independant, conditions do not represent working practice, and the use and availability of matrix must match representative samples

  • True
  • Fasle

16. Random errors

  • Indeterminate errors
  • Determinate errors

17. bias = (measured-actual)/actual

  • True
  • False

18. Where the relationship is established between a signal/measurement/response, and the amount/conc of analyte

  • Resolution
  • Calibration
  • Drug quantity
  • Analyte

19. Replicate samples should be analysed to avoid issues with bias

  • True
  • False

20. The minimum amount of analyte that can be quantified with acceptable precision and uncertainty

  • Loq
  • Lod